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nfsd: do nfs4_check_fh in nfs4_check_file instead of nfs4_check_olstateid
[firefly-linux-kernel-4.4.55.git]
/
fs
/
block_dev.c
diff --git
a/fs/block_dev.c
b/fs/block_dev.c
index 4fe10f93db8a3e52ebbb5330e94b80ee92455e1d..198243717da567bd5f47ad7c94ab823a82506c62 100644
(file)
--- a/
fs/block_dev.c
+++ b/
fs/block_dev.c
@@
-152,6
+152,9
@@
blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
+ if (IS_DAX(inode))
+ return dax_do_io(iocb, inode, iter, offset, blkdev_get_block,
+ NULL, DIO_SKIP_DIO_COUNT);
return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter, offset,
blkdev_get_block, NULL, NULL,
DIO_SKIP_DIO_COUNT);
return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter, offset,
blkdev_get_block, NULL, NULL,
DIO_SKIP_DIO_COUNT);
@@
-443,6
+446,12
@@
long bdev_direct_access(struct block_device *bdev, sector_t sector,
long avail;
const struct block_device_operations *ops = bdev->bd_disk->fops;
long avail;
const struct block_device_operations *ops = bdev->bd_disk->fops;
+ /*
+ * The device driver is allowed to sleep, in order to make the
+ * memory directly accessible.
+ */
+ might_sleep();
+
if (size < 0)
return size;
if (!ops->direct_access)
if (size < 0)
return size;
if (!ops->direct_access)
@@
-1170,6
+1179,7
@@
static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
bdev->bd_disk = disk;
bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_disk = disk;
bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
+ bdev->bd_inode->i_flags = disk->fops->direct_access ? S_DAX : 0;
if (!partno) {
ret = -ENXIO;
bdev->bd_part = disk_get_part(disk, partno);
if (!partno) {
ret = -ENXIO;
bdev->bd_part = disk_get_part(disk, partno);